Test your basic knowledge |

DSST Physical Sciences Principles

Subjects : dsst, science

Instructions:

Answer 31 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Electric power companies step up the voltage of generated power for transmission across the country because higher voltage...
Waves and particles
Newtons second principle of Universal Gravitation
Momentum
Means less power is transmitted

2. The larger the centripetal force - the faster an object travels in a circle of a given size
Universal
Increases the energy
Second principle of Centripetal force
Halogen radicals interfering in ozone synthesis

3. Which is not one of the fundamental forces of nature...
Universal
Momentum
Difference between the heat supplied and the heat exhausted
5 m/s

4. Entropy refers to...
Difference in the sped of light in water vs. air
Near a maximum
Waste heat for secondary uses
Disorder

5. From the 50's and to the 70's - the pH of rain in the northeast had..
12 miles per hour
Decreased
263 degrees kelvin
Momentum

6. Increasing the frequency of light
Disorder
Mechanical - chemical - and radiant energy
Second principle of Centripetal force
Increases the energy

7. The weight of one kilogram of iron on earth is...
Less on the moon
Waves and particles
Twice the work
Remains unchanged

8. When you add heat to a substance - its temperature...
Might stay the same
Waves and particles
Newtons first principle of Universal Gravitation
Near a maximum

9. cogeneration uses...
Third principle of Centripetal force
Waste heat for secondary uses
Remains unchanged
Movement

10. The ozone hole results from...
Movement
Heat of fusion
Third principle of Centripetal force
Halogen radicals interfering in ozone synthesis

11. The theoretical production curve of oil indicates oil production is...
263 degrees kelvin
Near a maximum
Mechanical - chemical - and radiant energy
Might stay the same

12. In a generator - the flow of electrons (current) is created by...
Movement
Universal
Increasing speed and constant acceleration
Waste heat for secondary uses

13. Heat is the...
Universal
Mechanical - chemical - and radiant energy
Total internal energy of an object
Sulfur

14. A 5 kg fish that is swimming toward it at a velocity that brings both fish to a halt. What is the speed of the smaller fish?
Heat of fusion
Might stay the same
Twice the work
5 m/s

15. If a charging elephant has kinetic energy - it must also have...
Newtons third principle of Universal Gravitation
Newtons first principle of Universal Gravitation
Momentum
Total internal energy of an object

16. Neglecting air resistance - a ball in free fall near the earth's surface will have...
12 miles per hour
Movement
Increasing speed and constant acceleration
Total internal energy of an object

17. Circular motion requires centripetal force
Twice the work
Means less power is transmitted
First principle of Centripetal force
Difference in the sped of light in water vs. air

18. The heat involved in the change of phase of phase from solid ice to liquid water is called...
12 miles per hour
Universal
Heat of fusion
Remains unchanged

19. All objects with mass are attracted to another by the gravitational force
Near a maximum
5 m/s
Newtons first principle of Universal Gravitation
Decreased

20. In burning coal - what contaminant is of major concern as a pollutant...
Sulfur
Movement
Remains unchanged
Increasing speed and constant acceleration

21. The work that a heat engine is able to accomplish is ideally equivalent to the
Heat of fusion
Total internal energy of an object
Sulfur
Difference between the heat supplied and the heat exhausted

22. Electromagnetic radiation can be viewed as...
Waves and particles
5 m/s
Universal
Increasing speed and constant acceleration

23. If the mass of a cart full of groceries decreases of half and its speed doubles - the momentum of the cart...
Waves and particles
Increases the energy
Difference in the sped of light in water vs. air
Remains unchanged

24. A ship travels 3 miles in 15 minutes what is its speed in miles per hour...
5 m/s
Decreased
Difference in the sped of light in water vs. air
12 miles per hour

25. Electrical energy can be converted to...
Remains unchanged
Mechanical - chemical - and radiant energy
Second principle of Centripetal force
Means less power is transmitted

26. Raising an auto in a service station requires work. Raising it twice as high requires...
Decreased
Means less power is transmitted
Difference in the sped of light in water vs. air
Twice the work

27. At a given speed - the centripetal force - the smaller the circle.
Remains unchanged
Movement
Waves and particles
Third principle of Centripetal force

28. A temperature of -10 degrees celsius is equivalent to...
Increases the energy
Difference between the heat supplied and the heat exhausted
Third principle of Centripetal force
263 degrees kelvin

29. The reason that a spear fisherman cannot see where the fish is actually located is...
First principle of Centripetal force
Movement
Difference in the sped of light in water vs. air
12 miles per hour

30. The gravitational force between two masses is inversely proportional to the square of the distance between those two objects.
Twice the work
Newtons third principle of Universal Gravitation
Waves and particles
Newtons second principle of Universal Gravitation

31. The gravitational force - two masses are directly proportional to the mass of each object
Newtons second principle of Universal Gravitation
Halogen radicals interfering in ozone synthesis
Increasing speed and constant acceleration
Waste heat for secondary uses